~cpp ( define (gugudan x y) (begin (when (> x 9) (exit) ) (when (> y 9) (begin (gugudan (+ x 1) (- y 9)) (exit) )) (print x) (write 'x) (print y) (write '=) (print (* x y)) (newline) (gugudan x (+ y 1)) (exit) )) (gugudan 2 1)